6XOR

Structure of the Self-Association Domain of Swallow

• PDB DOI: https://doi.org/10.2210/pdb6XOR/pdb
• BMRB: 30768

• Classification: RNA BINDING PROTEIN
• Organism(s): Drosophila melanogaster
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2020-07-07 Released: 2021-03-24 
• Deposition Author(s): Loening, N.M., Barbar, E.
• Funding Organization(s): National Science Foundation (NSF, United States)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Structural characterization of the self-association domain of swallow.

Loening, N.M., Barbar, E.

(2021) Protein Sci 30: 1056-1063

• PubMed: 33641207 
• DOI: https://doi.org/10.1002/pro.4055
• Primary Citation of Related Structures:  
  6XOR


• PubMed Abstract: 
  

  Swallow, a 62 kDa multidomain protein, is required for the proper localization of several mRNAs involved in the development of Drosophila oocytes. The dimerization of Swallow depends on a 71-residue self-association domain in the center of the protein sequence, and is significantly stabilized by a binding interaction with dynein light chain (LC8). Here, we detail the use of solution-state nuclear magnetic resonance spectroscopy to characterize the structure of this self-association domain, thereby establishing that this domain forms a parallel coiled-coil and providing insight into how the stability of the dimerization interaction is regulated.

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Organizational Affiliation: 

Department of Chemistry, Lewis & Clark College, Portland, Oregon, USA.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: light scattering

Macromolecule Content

• Total Structure Weight: 17.12 kDa 
• Atom Count: 1,202 
• Modelled Residue Count: 142 
• Deposited Residue Count: 142 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein swallow	A, B	71	Drosophila melanogaster	Mutation(s): 4  Gene Names: swa, CG3429
UniProt
Find proteins for P40688 (Drosophila melanogaster) Explore P40688  Go to UniProtKB:  P40688

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-03-24 
Deposition Author(s): Loening, N.M., Barbar, E.

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Funding Organization	Location	Grant Number
National Science Foundation (NSF, United States)	United States	1617019
National Science Foundation (NSF, United States)	United States	1617019 Amendment No. 1

Revision History  

• Version 1.0: 2021-03-24
  Type: Initial release
  
• Version 1.1: 2021-04-28
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Database references, Other
• Version 1.3: 2024-05-15
  Changes: Data collection, Database references